Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:13 2012

Optimize a model with 149 rows, 128 columns and 498 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 149 rows, 126 columns, 496 nonzeros
Variable types: 0 continuous, 126 integer (125 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 80 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0   51   30.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     0    0.47059    0   52   21.00000    0.47059  97.8%     -    0s
H    0     0                      18.0000000    0.47059  97.4%     -    0s
     0     0    1.05605    0   53   18.00000    1.05605  94.1%     -    0s
H    0     0                      17.0000000    1.05605  93.8%     -    0s
     0     0    1.20192    0   54   17.00000    1.20192  92.9%     -    0s
H    0     0                      15.0000000    1.20192  92.0%     -    0s
     0     0    1.25877    0   56   15.00000    1.25877  91.6%     -    0s
     0     0    1.25877    0   56   15.00000    1.25877  91.6%     -    0s
     0     2    1.26121    0   56   15.00000    1.26121  91.6%     -    0s
*    9     9               6       9.0000000    2.41158  73.2%  31.9    0s
*   57    12               6       8.0000000    4.53522  43.3%  20.8    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 81 nodes (1869 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%